LOW-ALTITUDE UAV REMOTE SENSING TECHNOLOGY AND ITS APPLICATION IN SURVEYING AND MAPPING OF A BAUXITE MINE

摘要

With the liberalization of low-altitude domain restrictions,low-altitude flight and aircraft low-altitude technology control applications have become a new direction.Low-altitude UAV remote sensing technology is often used by people in many fields,such as surveying and mapping,terrain surveying,data collection,tourism development,geological disaster prevention,agricultural irrigation,pest control,etc.In this study,the research site is the Hei-tutian bauxite mine in Qingzhen City,and the DJI Z-1 UAV is selected to operate remote sensing technology in the 0-500M airspace of the low-altitude field.The cycle is 3 days,and the total lift is 6 times (2 times each day).The complete topographic surveying and mapping results of the corresponding bauxite mines are collected,and the surveying and mapping data are sorted and counted.According to the relevant results of the bauxite mines surveyed and drawn,a report plan is formed.The results show that the distance between the low-altitude drone surveying and mapping area and point 1 is 1,677.55m,which is 1.45m away from the field surveying and mapping distance.The point distance between the low-altitude drone surveying and mapping area and point 2 is 2340.23m,which is 1.0 m away from the field surveying and mapping distance.The point distance between the low-altitude drone surveying and mapping area and point 3 is 1190.23m,which is 0 m away from the field surveying and mapping distance.The measurement result meets the requirements,and the accuracy is high.The operation of UAV remote sensing technology in the low-altitude field can help users to survey and map the precise location and various information of bauxite mines in detail which is of great help to the collection of data in the early stage of development and the collection of specific development information.